The essence of the article was as follows:
“One strange side effect of the equinox is a dramatically increased likelihood of auroras………….
NASA data shows that geomagnetic disturbances are twice as likely to occur around the equinoxes (March-April), (September-October) than around the solstices. Why? The answer is likely the same reason for the season: axial tilt."
(Image taken 17/03/16 by Antti Pietikainen)